Journal
ISRAEL JOURNAL OF CHEMISTRY
Volume 58, Issue 12, Pages 1347-1355Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ijch.201800038
Keywords
Hybrid polymer/QD latexes; Nanofibers; Electrospinning; VOC sensors
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Funding
- Basque Government [IT999-16, ELKARTEK KK-2016/00030, KK-2017/00089]
- Spanish Government (Ministerio de Economia y Competitividad) [CTQ2014-59016-P, TEC2015-63838-C3-3-R]
- Spanish Government
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Hybrid nanofibers containing CdSe/ZnS quantum dots have been produced by electrospinning of hybrid latexes to characterize the electro-optical behavior of this novel luminescent sensing material. The latexes are synthesized by seeded semi-batch emulsion polymerization yielding cross-linked core-shell PS/QDs/PMMA particles with efficiently encapsulated quantum dots guaranteeing a good optical stability. Addition of polyvinyl alcohol (PVA) or polyethylene oxide (PEO) to the latexes is necessary to produce polymeric dispersions suitable for electrospinning manufacture of the nanometric fibers. The optimized polymeric dispersions are successfully electrospun obtaining fluorescent nanofibers in both cases. The hybrid nanofibers are sensitive to selected solvents (acetone, methanol and THF) and present positive response making them good candidates for the production of VOC sensors.
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